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Coffee knowledge: why does coffee turn sour when it gets cold?

Coffee knowledge: why does coffee turn sour when it gets cold?

Sometimes we have this experience: we have a cup of coffee in a coffee shop or ourselves, and we love to drink black coffee, so we don't add sugar or milk, but before long, as the coffee gets cold, the originally mellow coffee will also become sour and difficult to swallow. Why on earth is this? Is there any way to avoid it? In fact, drinking coffee is like eating fish, most of the time it's hot.

2014-09-27
American Coffee Pot American Coffee Culture Coffee utensils recommend American drip pots

American Coffee Pot American Coffee Culture Coffee utensils recommend American drip pots

As the name implies, the American drip pot is a coffee brewing instrument commonly used in the United States. Specifically, it is not a pot, it is only a way of making coffee, and the operation process is very simple. When the power is turned on, the high heat element in the n pot quickly heats a small part of the water flowing from the water storage tank to boiling, and the steam pressure pushes the water out of the water pipe in turn, after passing through the distributor.

2016-04-26
Analysis of the on-off process of M27 coffee machine

Analysis of the on-off process of M27 coffee machine

The on / off process of the coffee machine sounds very simple, and those who do not understand can be operated according to its instructions, but for some people who do not understand or come into contact with for the first time, they may not be able to read the instructions for a while, especially the full English version of the instructions of some imported coffee machines, which is even more difficult for people who do not understand English. Here, the author has been engaged in coffee for many years.

2014-07-25
Coffee brewing recommends Italian coffee maker to make coffee.

Coffee brewing recommends Italian coffee maker to make coffee.

In 1901, Italian Milan engineer Luigi Bezzera invented the espresso machine. Italian coffee machine is a machine that uses high temperature and high pressure to make coffee quickly. According to the type of boiler, Italian coffee machine is divided into single boiler heat exchange type, double boiler type and multi-boiler type; according to the mode of operation, it can be roughly divided into: manual, automatic, semi-automatic, fully automatic and so on. And the professional coffee farm

2015-04-17
How to use Coffee Machine American Coffee Machine handling of Common problems in American Coffee Machine

How to use Coffee Machine American Coffee Machine handling of Common problems in American Coffee Machine

1. Coffee is too light: the ratio of water to coffee powder is not right, so just increase the amount of coffee powder. The Min scale of the glass coffee pot below is 2 cups and requires 4-6 tablespoons of coffee powder. Coffee temperature is too low: American coffee machine due to the principle, in the process of coffee extraction will lose a large part of the heat, so the coffee temperature is not high, can not add coffee powder first

2016-04-01
Common sense of coffee Why does coffee turn sour when it gets cold?

Common sense of coffee Why does coffee turn sour when it gets cold?

Sometimes we have this experience: we have a cup of coffee in a coffee shop or ourselves, and we love to drink black coffee, so we don't add sugar or milk, but before long, as the coffee gets cold, the originally mellow coffee will also become sour and difficult to swallow. Why on earth is this? Is there any way to avoid it? In fact, drinking coffee is like eating fish, most of the time it's hot.

2014-10-29
Common sense of coffee why coffee turns sour after it is cooled.

Common sense of coffee why coffee turns sour after it is cooled.

Sometimes we have this experience: we have a cup of coffee in a coffee shop or ourselves, and we love to drink black coffee, so we don't add sugar or milk, but before long, as the coffee gets cold, the originally mellow coffee will also become sour and difficult to swallow. Why on earth is this? Is there any way to avoid it? In fact, drinking coffee is like eating fish, most of the time it's hot.

2014-12-20
The skill of stir-frying coffee beans in our own iron pot and hand net

The skill of stir-frying coffee beans in our own iron pot and hand net

According to local conditions, you can use the home wok to fry coffee beans, but also can fry fresh and delicious coffee. Operation: 1. Spread a layer of raw beans at the bottom of the pot, turn on a small fire in the gas stove (the smallest fire is fully lit, not just the middle circle), and begin to slowly stir the raw beans in the pot. two。 It's a little tiring to keep turning the spatula. But... Have you noticed? The emerald green raw beans have just begun.

2015-03-27
Basic knowledge of Coffee Why does coffee turn sour when it gets cold?

Basic knowledge of Coffee Why does coffee turn sour when it gets cold?

Sometimes we have this experience: we have a cup of coffee in a coffee shop or ourselves, and we love to drink black coffee, so we don't add sugar or milk, but before long, as the coffee gets cold, the originally mellow coffee will also become sour and difficult to swallow. Why on earth is this? Is there any way to avoid it? In fact, drinking coffee is like eating fish, most of the time it's hot.

2015-01-19
How to maintain a coffee machine

How to maintain a coffee machine

1. Coffee machine body cleaning: wipe the body with a wet cloth before starting the machine every day. If you need to use a cleaner, please spray it on the wet cloth to wipe the body (note that the cloth is not too wet, and the cleaner cannot be sprayed directly on the body to prevent excess water and detergent from infiltrating the circuit system and eroding the wires). 2. Cooking head outlet: (1)

2014-07-28
Why does the coffee turn sour after it is cooled?

Why does the coffee turn sour after it is cooled?

Sometimes we have this experience: we have a cup of coffee in a coffee shop or ourselves, and we love to drink black coffee, so we don't add sugar or milk, but before long, as the coffee gets cold, the originally mellow coffee will also become sour and difficult to swallow.

2014-06-14
Basic knowledge of boutique coffee Why does coffee turn sour when it gets cold?

Basic knowledge of boutique coffee Why does coffee turn sour when it gets cold?

Sometimes we have this experience: we have a cup of coffee in a coffee shop or ourselves, and we love to drink black coffee, so we don't add sugar or milk, but before long, as the coffee gets cold, the originally mellow coffee will also become sour and difficult to swallow. Why on earth is this? Is there any way to avoid it? In fact, drinking coffee is like eating fish, most of the time it's hot.

2014-12-25
Coffee common sense American (drip) coffee pot usage

Coffee common sense American (drip) coffee pot usage

How to use the American coffee pot: 1. Fill the water into the water tank 2. Put the filter paper on the bucket (some models are metal filters, and the filter paper can be put or not. 3. 4. Turn on the switch. 5. Let the coffee slowly drip to the amount you want. 6. Enjoy the cup of coffee ^^After reading these six steps, you may wonder

2014-12-09
Coffee Maker Usage of American (Drip) Coffee Pot

Coffee Maker Usage of American (Drip) Coffee Pot

How to use the American coffee pot: 1. Fill the water into the water tank 2. Put the filter paper on the bucket (some models are metal filters, and the filter paper can be put or not. 3. 4. Turn on the switch. 5. Let the coffee slowly drip to the amount you want. 6. Enjoy the cup of coffee ^^After reading these six steps, you may wonder

2015-05-27
The usage of American (dripping) coffee maker

The usage of American (dripping) coffee maker

The usage of American coffee maker: 1. Put water into the water tank 2. Put the filter paper on the filter cartridge (some machines are metal filters, whether you put the filter paper or not. 3. Put in the coffee powder 4. Turn on switch 5. Let the coffee drip slowly to the amount you want (usually several cups are marked on the glass pot of an American coffee maker) 6. Enjoy this cup of coffee. After looking at these six steps, you may wonder

2014-07-16
The usage of American (dripping) coffee maker

The usage of American (dripping) coffee maker

The usage of American coffee maker: 1. Put water into the water tank 2. Put the filter paper on the filter cartridge (some machines are metal filters, whether you put the filter paper or not. 3. Put in the coffee powder 4. Turn on switch 5. Let the coffee drip slowly to the amount you want (usually several cups are marked on the glass pot of an American coffee maker) 6. Enjoy this cup of coffee. After looking at these six steps, you may wonder

2015-08-28
Usage of American (drip-type) coffee maker

Usage of American (drip-type) coffee maker

The usage of American coffee maker: 1. Put water into the water tank 2. Put the filter paper on the filter cartridge (some machines are metal filters, whether you put the filter paper or not. 3. Put in the coffee powder 4. Turn on switch 5. Let the coffee drip slowly to the amount you want (usually several cups are marked on the glass pot of an American coffee maker) 6. Enjoy this cup of coffee. After looking at these six steps, you may wonder

2015-08-06
General knowledge of coffee roasting in the process of stir-frying coffee beans in our own iron pot

General knowledge of coffee roasting in the process of stir-frying coffee beans in our own iron pot

According to local conditions, you can use the home wok to fry coffee beans, but also can fry fresh and delicious coffee. Operation: 1. Spread a layer of raw beans at the bottom of the pot, turn on a small fire in the gas stove (the smallest fire is fully lit, not just the middle circle), and begin to slowly stir the raw beans in the pot. two。 It's a little tiring to keep turning the spatula. But... Have you noticed? The emerald green raw beans have just begun.

2015-05-15
How to maintain coffee machine body cleaning steps

How to maintain coffee machine body cleaning steps

1. Coffee machine body cleaning: wipe the fuselage with a wet rag before starting up every day. If you need to use a cleaner, please spray it on the wet rag and wipe the fuselage with a mild, non-corrosive cleaner (be careful that the rag is not too wet, and the cleaner should not be sprayed directly on the fuselage to prevent excess water and detergent from seeping into the circuit system and eroding wires to cause short circuit). two。 Outlet of cooking head: (1)

2015-07-16
The usage of American (drip-type) coffee maker

The usage of American (drip-type) coffee maker

The usage of American coffee maker: 1. Put water into the water tank 2. Put the filter paper on the filter cartridge (some machines are metal filters, whether you put the filter paper or not. 3. Put in the coffee powder 4. Turn on switch 5. Let the coffee drip slowly to the amount you want (usually several cups are marked on the glass pot of an American coffee maker) 6. Enjoy this cup of coffee. After looking at these six steps, you may wonder

2015-03-02
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